midnight on tuesday on covering the tragic truth behind the shooting involving retired cp detective jim griffin inside of his northwest side apartment after he had shot his 48 year-old son michael once in the head and killed him. i guess he was startled out of his sleep. >> neighbors on this quiet street a kind of warm hearted gentleman. very nice man, i've met him a couple of times, quiet and kind he was living with his father temporarily and had stepped out of the apartment late last night the shooting happened when michael was apparently coming back inside. i know predators' can common. on the first floor of an apartment is where they usually try to break in. no one has never broken in the first floor window. >> we are told after it in jim griffin found out the person he shot was his son he started to have chest pains and that's when he was brought to the hospital where he remains tonight there are still no charges filed in this case. there is a new tax possibly targeting gun owners, cook county is calling it the violence tax. there is more behind it than just an effort to cut down o